Gas-burner.



H. A. B. HELANDER.

GAS BURNER.

APPLICATION FILED MAY 13, 1906.

914,044. Patented Mar. 2. 1909.

Fig.1.

1 R 2 @4 7 4 //////7/////,IV//% UNITED STATES PATENT FFIO.

HENRY A. B. HELANDER, OF ST. LOUIS, MISSOURI.

GAS-BURNER.

To all whom it may concern:

Be it known that I, HENRY A. B. HE-

LANDER, a citizen of the United States, re-

siding at St. Louis, in the State of Missouri, have invented a certain new and useful Gas-Burner, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to gas burners, and more particularly to improvements in that form of burner shown and described in Letters Patent No. 883,196, granted to me March 31, 1908.

The object of my invention is to simplify the construction of the burner and to lighten its weight, as well as to reduce the cost of manufacture, and at the same time to provide means whereby the shade holder may be removably supported at the lower end of the member containing the mixing chamber so that the style and the size of the shade or chimney may be readily changed.

In the accompanying drawings, which illustrate one form of burner made in accordance with my invention, Figure 1 is a vertical, central section, Fig. 2 is a detailed view showing the base and supporting stem, and Fig. 3 is a section on the line 33 of Fig. 1.

Like marks of reference refer to similar parts in the several views of the drawings.

The base consists of a sleeve 5 and a cap 6. The sleeve 5 is provided with a hexagonal head or nut 7 by means of which it may be screwed into the cap 6 and onto the fixture to which it is applied,it being supplied with external threads 8 for engaging with the cap and internal threads 9 for engaging with the fixture. Between the sleeve 5 and the cap 6 is formed a distributing chamber 10 from which the gas escapes through openings 11,

* preferably four in number, formed in the top of the cap 6. The top of the cap 6 is provided with a base 12 adapted to receive the lower threaded end 13 of a screw 14 provided at its upper end with a slotted head 15.

16 is a shell which is supported from the screw 14 and is divided by means of partitions 17 into mixing chambers 18 corresponding in number to the gas outlets 11. As shown in the drawmgs, the partitions 17 are four in number and are formed of a single sheet of metal folded upon itself, as best Specification of Letters Patent.

Application filed May 13, 1908.

Patented March 2, 1909.

Serial No. 432,575.

shown in Fig. 3. The sheet of metal is so folded as to form a central opening 19 through which the stem of the screw 14 passes. The base 12 is provided with slots 20 for receiving the lower edges of the partitions 17 so that the said partitions will be properly positioned with relation to the gas outlets 11. Situated between the upper end of the shell 16 and the upper edges of the par titions 17 is a layer of wire gauze 21 and the upper end of the shell 16 is provided with openings 22 for the escape of the air and gas from the mixing chambers 18. The lower end of the shell 16 is flared so as to form a seat 23 for the reception of a removable shade or chimney holder 24. Surrrounding the shell 16 is the thimble 25 of the usual mantle holder. This thimble 25 is provided at its upper end with a wire gauze 26 and has supported around it a mantle 27, the mantle being carried by the usual wire stem 28 secured to the thimble 25.

It will be seen that my burner is formed entirely of sheet metal, with the exception of the base, which is quite small and consequently light. The formation of the burner is such as to allow the free passage of air between the shade holder 24 and the base so that the mixing chambers 18 are fully supplied with air. The air and gas, after mixing in the chambers 18, also have an additional mixing space between the upper end of the shell 16 and the gauze 26 of the burner before combustion within the mantle 27.

Having fully described my invention, what I claim as new and desire to sceure by Letters Patent of the United States, is:

1. In a gas burner, the combination with a base provided with a distributing chamber and a plurality of outlets, of a shell divided by removable sheet metal partitions into a plurality of mixing chambers, means for supporting said shell above said base, and a mantle arranged to receive the gas and air discharged from said mixing chambers.

2. In a gas burner, the combination with a base provided with a distributing chamber and a plurality of outlets, of a shell, means for supporting said shell above said base, partitions composed of double layers of integral sheet metal and dividing said shell into a plurality of mixing chambers, and a mantle arranged to receive the gas and air discharged from said mixing chambers.

3. In a gas burner, the combination with a base provided with a distributing chamber and a plurality of outlets, of a boss carried by said base and provided with slots, a shell divided by sheet metal partitions into a plurality of mixing chambers, said partitions engaging the slots in said boss, means for supporting said shell above said base, and a mantle arranged to receive the gas and air from said mixing chambers.

4. In a gas burner, the combination with a base rovided with a distributing chamber and a p urality of outlets, of a boss carried by said base and provided with slots, a shell, means for supporting said shell above said base, partitions composed of double layers of integral sheet metal and dividing said shell into a plurality of mixing chambers, said partitions engaging the slots in said boss, and a mantle arranged to receive the gas and air from said mixing chambers.

5. In a gas burner, the combination with a base provided with a distributing chamber and a plurality of outlets, of a shell having a perforated top, means for supporting said shell above said base, sheet metal partitions within said shell and dividing it into a plurality of mixing chambers, a layer of gauze held between said partitions and the top of said shell, and a mantle arranged to receive the gas and air discharged from said mixing chambers.

6. In a gas burner, the combination with a base provided with adistributing chamber and a plurality of outlets, of a member provided with a plurality of mixing chambers, means for supporting said member above said base, the lower part of said member being provided with a seat, a removable shade holder carried by said seat, and a mantle arranged to receive the air and gas from said mixing chambers.

7. In a gas burner, the combination with a base provided with a distributing chamber and a plurality of outlets, a shell divided into a plurality of mixing chambers, means for supporting said shell from said base, said shell having a flared lower end forming a seat, a removable shade holder carried by said seat, and a mantle arranged to receive the air and gas from said mixing chamber.

In testimony whereof I have hereunto set my hand and ailixed my seal in the presence of the two subscribing witnesses.

HENRY A. B. llELANllEE. [a s] Witnesses W'. A. ALEXANDER, HAROLD R. SMALL. 

